16452122544 has 480 divisors, whose sum is σ = 56780365824. Its totient is φ = 4546160640.

The previous prime is 16452122539. The next prime is 16452122551. The reversal of 16452122544 is 44522125461.

16452122544 is a `hidden beast` number, since 1 + 64 + 52 + 1 + 2 + 2 + 544 = 666.

It is a super-3 number, since 3×16452122544³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16452122499 and 16452122508.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70609852 + ... + 70610084.

Almost surely, 2^16452122544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16452122544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28390182912).

16452122544 is an abundant number, since it is smaller than the sum of its proper divisors (40328243280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16452122544 is a wasteful number, since it uses less digits than its factorization.

16452122544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 389 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 16452122544 in words is "sixteen billion, four hundred fifty-two million, one hundred twenty-two thousand, five hundred forty-four".